No you don't need to know anything about Ranma for this, because it's all explained as the story progresses.
#18 rank among all Ranma 1/2 fics
After Jusenkyo, everything gets back to normal. Yes the city of Nerima has now found the regular chaos just a part of their lives. Nothing seemed out of place.
Well, atleast that's what a certain pig-tailed martial artist lead everyone to believe.
But what happens when someone finds out that the man all admired and wanted to win over has paid a heavy price for their lives to be normal, but only to get it back into the mess that it once was?
You just need to know that Ranma 1/2 doesn't belong to me, if it did, it certainly would have had an ending at least...I means seriously! the ending is obvious-might as well get it done and over with! And so I deliver my ending!